<template>
  <div>
      <!-- 顶部滑动条区域 -->
    <div id="slider" class="mui-slider">
      <div id="sliderSegmentedControl"
        class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted"
      >
        <div class="mui-scroll">
          <a :class="['mui-control-item' , item.id == 0 ? 'mui-active': '']" v-for="item in cates" :key="item.id" @click="getPhotosBycateId(item.id)">{{ item.title }}</a>
        </div>
      </div>
    </div>
    <!-- 图片列表区域 -->
    <ul class="photo-list">
        <router-link v-for="item in photoList" :key="item.id" :to="'/home/photoinfo/' + item.id" tag="li">
            <img v-lazy="item.img_url">
            <div class="info">
                <div class="info-title">{{ item.title }}</div>
                <div class="info-body">{{ item.zhaiyao }}</div>
            </div>
        </router-link>
    </ul>
  </div>
</template>
<script>
import mui from "../../lib/mui/js/mui.min.js"
export default {
    data(){
        return {
            cates : [],
            photoList : []
        }
    },
    created(){
        this.getAllCategory();
        this.getPhotosBycateId(0);
    },
    mounted(){
        mui('.mui-scroll-wrapper').scroll({
            deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
        }); 
    },
    methods :{
        getAllCategory(){
            this.$http.get('api/getimgcategory').then(res=>{
                if(res.body.status === 0){
                    res.body.message.unshift({title:"全部",id:0})
                    this.cates =res.body.message
                }
            })
        },
        getPhotosBycateId(cateId){
            this.$http.get('api/getimages/' + cateId).then(res=>{
                if(res.body.status === 0){
                    this.photoList = res.body.message;
                    console.log(res.body.message);
                }
            })
        }
    }
};
</script>
<style lang="scss" scoped>
* {
    touch-action: pan-y;
}
.photo-list {
    list-style: none;
    margin: 0;
    padding: 10px;
    padding-bottom: 0px;
    li {
        background-color: #ccc;
        text-align: center;
        margin-bottom: 10px;
        box-shadow: 0 0 9px #999;
        position: relative;
        img {
            width: 100%;
            vertical-align: middle;
        }
        img[lazy=loading] {
            width: 40px;
            height: 300px;
            margin: auto;
        }
        .info{
            color: white;
            position: absolute;
            bottom: 0px;
            text-align: left;
            max-height: 85px;
            background-color: rgba(0,0,0,0.4);  
            .info_title{
                font-size: 14px;
            }
            .info-body{
                font-size: 13px;
            }
        }
    }
}


</style>